DONE: add functionality (in tcaxLib.pyd module) to support parsing TCAS_BUF which may contain thousands of PIXs (such TCAS_BUF is called non-linear TCAS_BUF) to linear TCAS_BUF which only contains per-frame PIXs, thus the number of PIXs will be dramatically reduced and the linearity will be improved, which will produce a TCAS file with better performance. And this functionality is likely to be the key point of making a TCAS particle system.
DONE: fix the font size issue of util.cairo module.
DONE: add a patch (external module) to automatically fix the text positioning issue (between normal ASS texts and other types)
Two directions: more advanced features (usage of utils - cairo, magick, video, audio, opengl particle system), or easy to use features (useful functions, helpful scripts, etc.)